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On the recordRead 11 Oct 202622 facts
OpenTabs
On the record
- AI clients
- The site names Claude Code, Cursor, Windsurf, and OpenCode, and says OpenTabs works with any MCP client supporting Streamable HTTP.opentabs.dev · read 11 Oct 2026
- Audit log
- The server keeps a tool invocation audit log, with the documentation describing a 500-entry in-memory history and a persistent local log file.opentabs.dev · read 11 Oct 2026
- Browser tools
- Built-in browser tools can work with any tab, and the maker lists screenshots, clicking, typing, and network capture among their capabilities.github.com · read 11 Oct 2026
- Connection modes
- The MCP server documentation describes Full MCP, Gateway MCP, CLI mode, and auto-start via stdio.opentabs.dev · read 11 Oct 2026
- Extension installation
- Users must manually load the Chrome extension in Developer mode because the maker says Chrome does not permit distributing this localhost-server extension through the Chrome Web Store.opentabs.dev · read 11 Oct 2026
- How it works
- An MCP server routes tool calls to the matching browser tab, where a Chrome extension runs them on the web app.opentabs.dev · read 5 Oct 2026
- Intended users
- The documentation describes paths for people using existing plugins, building plugins, and contributing to the platform.opentabs.dev · read 5 Oct 2026
- License and support
- OpenTabs is open source under the MIT license, and the maker links to a community Discord for support and discussion.opentabs.dev · read 11 Oct 2026
- Local operation
- The MCP server runs locally and bridges AI clients with the browser extension; the maker says there is no cloud, relay, or account requirement.opentabs.dev · read 11 Oct 2026
- Permissions
- Tools are disabled until enabled, and permissions can be set to Off, Ask for confirmation, or Auto per plugin or tool.github.com · read 11 Oct 2026
- Plugin development
- Users can scaffold their own plugins, build them, and register them locally; the maker also says plugins can be published to npm.opentabs.dev · read 11 Oct 2026
- Plugin limitation
- The site notes that OpenTabs requires a plugin for each site and that a site’s internal APIs can change.opentabs.dev · read 5 Oct 2026
- Plugin review
- The maker says users can have AI review plugin adapter source code before enabling it, and permissions reset when a plugin is updated.opentabs.dev · read 11 Oct 2026
- Plugins
- The site advertises 100+ plugins and about 2,000 tools, including integrations for Slack, Discord, GitHub, Jira, Notion, Figma, AWS, and Stripe.opentabs.dev · read 11 Oct 2026
- Purpose
- OpenTabs exposes web apps’ internal APIs as MCP tools that AI agents can use through the user’s logged-in browser session.opentabs.dev · read 5 Oct 2026
- Security defaults
- Plugin tools are disabled by default, and the site says users can have an AI review plugin source before enabling it; plugin updates reset permissions.opentabs.dev · read 5 Oct 2026
- Setup limitation
- The installation guide instructs users to manually load the Chrome extension in Developer mode using “Load unpacked.”opentabs.dev · read 5 Oct 2026
- Setup requirements
- The installation guide requires Node.js 22 or later and Google Chrome or a Chromium-based browser.opentabs.dev · read 5 Oct 2026
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